The Cathedral of the Madeleine is a Roman Catholic church in Salt Lake City, Utah, United States. It was completed in 1909, and currently serves as the cathedral, or mother church, of the Diocese of Salt Lake City. It is the only cathedral in the U.S. under the patronage of St. Mary Magdalene.
The cathedral was built under the direction of Lawrence Scanlan, first bishop of Salt Lake. It was designed by architects Carl M. Neuhausen and Bernard O. Mecklenburg. The interior of the cathedral was created under the direction of Joseph S. Glass, the second bishop of Salt Lake. Bishop Glass enlisted John Theodore Comes, one of the preeminent architects in the country, to decorate the interior of the cathedral. His plans for the interior were largely based upon the Spanish Gothic style. The colorful murals and polychrome were added at this time, as were the ornate shrines.